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Capsid bugs can spoil the appearance of plants by giving the foliage a tattered and distorted appearance and causing flower buds to abort. Apple capsid can damage developing fruits.
Capsid damage on artichoke. Credit: RHS/Simon Garbutt.
Capsid bugs are true bugs, there are many species, most do not damage garden plants and some are predatory. A few feed on plant sap at the shoot tips and on flower buds, of a wide range of herbaceous and woody garden plants. These include the common green capsid (Lygocoris pabulinus) and the tarnished or bishop bug (Lygus rugulipennis).
Some capsid bugs have a more restricted host range such as the apple capsid (Plesiocoris rugicollis), which feeds on apple and pear and can damage fruits.
Signs of damage appear from May to early September.
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